JACC:冠状动脉综合征中T细胞下调的机制

2015-03-31 赵洲译 MedSci原创

尽管在过去十余年中,急性冠状动脉综合征(ACS)的最终结果已经得到了相当大的改善,但急性冠状动脉综合征仍旧是世界上的发病率和致死率的主要原因。炎症在动脉粥样硬化的初始和发展过程中扮演了重要的角色。在动脉粥样硬化的实验模型中,调节T细胞(Treg)频率降低,辅助T细胞参与外周免疫耐受,促进了动脉粥样硬化的形成。而降低Treg响应则可以诱导动脉粥样硬化复原和斑块的稳定化。在调节T细胞减少的ACS患者中

尽管在过去十余年中,急性冠状动脉综合征(ACS)的最终结果已经得到了相当大的改善,但急性冠状动脉综合征仍旧是世界上的发病率和致死率的主要原因。炎症在动脉粥样硬化的初始和发展过程中扮演了重要的角色。在动脉粥样硬化的实验模型中,调节T细胞(Treg)频率降低,辅助T细胞参与外周免疫耐受,促进了动脉粥样硬化的形成。而降低Treg响应则可以诱导动脉粥样硬化复原和斑块的稳定化。在调节T细胞减少的ACS患者中常常被观测到出现严重的适应性免疫应答损伤。这和疾病更加恶化的结果有联系。

在经过抗CD3和抗CD28交联作用的间接体内刺激后(20名患有非ST段抬高心肌梗死、20名患稳定性心绞痛以及20人对照组),研究人员评价了早期的和下游的T细胞受体激活通路。并且在一年后重新评估了10例非ST段抬高心肌梗死和10例稳定性心绞痛病例。研究人员对病人进行静脉取血。在综合征出现的24小时之内进行取血,从全血血样中获得外周血液单核细胞。磷酸流分析表明在非ST段抬高心肌梗死病人中zeta链相关的蛋白激酶磷酸化作用的降低、T细胞活化作用增强。这是由于非受体型蛋白质酪氨酸磷酸酶PTPN22的表达增多。此外,研究人员还观测到磷酸化减少和结合白介素2和10的水平降低。在非ST段抬高心肌梗死患者中,辅助T细胞的T细胞受体诱导Treg产生的能力的下降。

此次研究表明,PTPN22的持续性过度表达与损伤性Treg分化有关。这对研究ACS将有很重要的意义。
 
原始出处:

Flego et al.Increased PTPN22 Expression and Defective CREB Activation Impair Regulatory T-Cell Differentiation in Non-ST-Segment Elevation Acute Coronary Syndromes.J Am Coll Cardiol 2015;65:1175–86

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    2015-10-20 hbwxf
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    2015-04-07 清氺訫

    好资料

    0

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    2015-04-07 清氺訫

    好东西

    0

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    2015-04-07 清氺訫

    值得学习

    0

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  7. [GetPortalCommentsPageByObjectIdResponse(id=1706815, encodeId=2be11e06815d1, content=<a href='/topic/show?id=15bd30902cc' target=_blank style='color:#2F92EE;'>#冠状动脉综合征#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=30902, encryptionId=15bd30902cc, topicName=冠状动脉综合征)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=345831322662, createdName=124985dbm16(暂无昵称), createdTime=Thu Nov 26 13:41:00 CST 2015, time=2015-11-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1853331, encodeId=7877185333164, content=<a href='/topic/show?id=48351020537' target=_blank style='color:#2F92EE;'>#JACC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10205, encryptionId=48351020537, topicName=JACC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=55ce62, createdName=hbwxf, createdTime=Tue Oct 20 11:41:00 CST 2015, time=2015-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=19783, encodeId=3a1519e83bc, content=好资料, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/03/28/a28e8ea268716dfc601012321847bccf.jpg, createdBy=e21a1620364, createdName=清氺訫, createdTime=Tue Apr 07 12:03:00 CST 2015, time=2015-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=19784, encodeId=0ae219e8457, content=好东西, beContent=null, objectType=article, channel=null, level=null, likeNumber=121, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/03/28/a28e8ea268716dfc601012321847bccf.jpg, createdBy=e21a1620364, createdName=清氺訫, createdTime=Tue Apr 07 12:03:00 CST 2015, time=2015-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=19782, encodeId=714a19e82ee, content=值得学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/03/28/a28e8ea268716dfc601012321847bccf.jpg, createdBy=e21a1620364, createdName=清氺訫, createdTime=Tue Apr 07 12:02:00 CST 2015, time=2015-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1325019, encodeId=c7bf1325019be, content=<a href='/topic/show?id=96c71804b7' target=_blank style='color:#2F92EE;'>#ACC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1804, encryptionId=96c71804b7, topicName=ACC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1e452500029, createdName=12498568m50暂无昵称, createdTime=Thu Apr 02 01:41:00 CST 2015, time=2015-04-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1430514, encodeId=da7b14305141d, content=<a href='/topic/show?id=f9b9e9124a8' target=_blank style='color:#2F92EE;'>#综合征#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79124, encryptionId=f9b9e9124a8, topicName=综合征)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Thu Apr 02 01:41:00 CST 2015, time=2015-04-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=19130, encodeId=ab6b19130b3, content=有意义, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2c8e1619533, createdName=cd90, createdTime=Tue Mar 31 11:47:00 CST 2015, time=2015-03-31, status=1, ipAttribution=)]
  8. [GetPortalCommentsPageByObjectIdResponse(id=1706815, encodeId=2be11e06815d1, content=<a href='/topic/show?id=15bd30902cc' target=_blank style='color:#2F92EE;'>#冠状动脉综合征#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=30902, encryptionId=15bd30902cc, topicName=冠状动脉综合征)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=345831322662, createdName=124985dbm16(暂无昵称), createdTime=Thu Nov 26 13:41:00 CST 2015, time=2015-11-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1853331, encodeId=7877185333164, content=<a href='/topic/show?id=48351020537' target=_blank style='color:#2F92EE;'>#JACC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10205, encryptionId=48351020537, topicName=JACC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=55ce62, createdName=hbwxf, createdTime=Tue Oct 20 11:41:00 CST 2015, time=2015-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=19783, encodeId=3a1519e83bc, content=好资料, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/03/28/a28e8ea268716dfc601012321847bccf.jpg, createdBy=e21a1620364, createdName=清氺訫, createdTime=Tue Apr 07 12:03:00 CST 2015, time=2015-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=19784, encodeId=0ae219e8457, content=好东西, beContent=null, objectType=article, channel=null, level=null, likeNumber=121, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/03/28/a28e8ea268716dfc601012321847bccf.jpg, createdBy=e21a1620364, createdName=清氺訫, createdTime=Tue Apr 07 12:03:00 CST 2015, time=2015-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=19782, encodeId=714a19e82ee, content=值得学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/03/28/a28e8ea268716dfc601012321847bccf.jpg, createdBy=e21a1620364, createdName=清氺訫, createdTime=Tue Apr 07 12:02:00 CST 2015, time=2015-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1325019, encodeId=c7bf1325019be, content=<a href='/topic/show?id=96c71804b7' target=_blank style='color:#2F92EE;'>#ACC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1804, encryptionId=96c71804b7, topicName=ACC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1e452500029, createdName=12498568m50暂无昵称, createdTime=Thu Apr 02 01:41:00 CST 2015, time=2015-04-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1430514, encodeId=da7b14305141d, content=<a href='/topic/show?id=f9b9e9124a8' target=_blank style='color:#2F92EE;'>#综合征#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79124, encryptionId=f9b9e9124a8, topicName=综合征)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Thu Apr 02 01:41:00 CST 2015, time=2015-04-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=19130, encodeId=ab6b19130b3, content=有意义, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2c8e1619533, createdName=cd90, createdTime=Tue Mar 31 11:47:00 CST 2015, time=2015-03-31, status=1, ipAttribution=)]
    2015-03-31 cd90

    有意义

    0

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